Portal de Periódicos da CAPES

Host genetic diversity enables Ebola hemorrhagic fever pathogenesis and resistance

2014; American Association for the Advancement of Science; Volume: 346; Issue: 6212 Linguagem: Inglês

10.1126/science.1259595

1095-9203

Angela L. Rasmussen, Atsushi Okumura, Martin T. Ferris, Richard Green, Friederike Feldmann, Sara Kelly, Dana P. Scott, David Safronetz, Elaine Haddock, Rachel LaCasse, Matthew J. Thomas, Pavel Sova, Victoria S. Carter, Jeffrey M. Weiss, Darla R. Miller, Ginger D. Shaw, Marcus J. Korth, Mark T. Heise, Ralph S. Baric, Fernando Pardo‐Manuel de Villena, Heinz Feldmann, Michael G. Katze,

Disaster Response and Management

Existing mouse models of lethal Ebola virus infection do not reproduce hallmark symptoms of Ebola hemorrhagic fever, neither delayed blood coagulation and disseminated intravascular coagulation nor death from shock, thus restricting pathogenesis studies to nonhuman primates. Here we show that mice from the Collaborative Cross panel of recombinant inbred mice exhibit distinct disease phenotypes after mouse-adapted Ebola virus infection. Phenotypes range from complete resistance to lethal disease to severe hemorrhagic fever characterized by prolonged coagulation times and 100% mortality. Inflammatory signaling was associated with vascular permeability and endothelial activation, and resistance to lethal infection arose by induction of lymphocyte differentiation and cellular adhesion, probably mediated by the susceptibility allele Tek. These data indicate that genetic background determines susceptibility to Ebola hemorrhagic fever.